"looking for plugins in '/home/build/build-home/opt/mongo/lib/sasl2', failed to open directory, error: No such file or directory" during Splunk Enterprise installation

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Updated:October 1, 2026
Document ID:SPLK051544

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Applicability

Splunk Enterprise

Description

During the installation or startup of a Splunk Enterprise instance, the following warning may appear in the logs: 

looking for plugins in '/home/build/build-home/opt/mongo/lib/sasl2', failed to open directory, error: No such file or directory

This message originates from MongoDB components bundled with Splunk. It does not indicate a fatal error and typically does not affect functionality.

This warning is associated with attempts to locate optional SASL (Simple Authentication and Security Layer) plugins. These are generally used for MongoDB authentication.


Resolution

As long as the tool works as expected, this warning can be safely ignored in absence of issues with the KV Store or other MongoDB-dependent components.


Stack Exchange

Revision History

Revision Publish Date Comments
1.0
01-Oct-2026
Initial Release

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